Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/23134
Title: Interactions between Australian Ravens and raptors in a pastoral area of New South Wales: Interspecific aggression and nest-site spacing
Contributor(s): Bauer, Alice L (author); McDonald, Paul  (author)orcid 
Publication Date: 2018
DOI: 10.20938/afo35001007
Handle Link: https://hdl.handle.net/1959.11/23134
Abstract: This study, near Tamworth, New South Wales, investigated the interactions within a diurnal raptor and Australian Raven Corvus coronoides community. The Australian Raven (hereafter 'Raven') is an abundant breeding resident here, is the only corvid that breeds in the area, and is known to have a close association with many raptor species. It is known to interfere with nests, provide frequent harassment and decrease the breeding productivity of several nesting raptor species, yet few studies have been completed on this issue, and its significance remains unknown. The abundance of raptors and Ravens and diversity of raptor species were determined from weekly surveys along a fixed 60-km transect in autumn to late spring 2016. A negative association was found between raptor species diversity and Raven abundance. The density and distribution of active or potential raptor and Raven nests were also recorded along the transect: active raptor nests had significantly more active stick nests of other species (raptors and Ravens) nearby (within 500 m), whereas active Raven nests had fewer such active nests within 500 m. Intruding Ravens and Wedge-tailed Eagles Aquila audax elicited significantly higher rates of defensive interactions from nesting Black Falcons Falco subniger than did other diurnal raptor species; Ravens triggered the highest rate of response. An increased understanding of the factors responsible for shaping community structure is useful for the management of threatened species. The raptor assemblage around Tamworth includes five threatened species, at least four of which are known to breed there, making competition for nest-sites here worthy of research.
Publication Type: Journal Article
Source of Publication: Australian Field Ornithology, v.35, p. 1-7
Publisher: BirdLife Australia
Place of Publication: Australia
ISSN: 1448-0107
Fields of Research (FoR) 2008: 060208 Terrestrial Ecology
060202 Community Ecology (excl. Invasive Species Ecology)
060801 Animal Behaviour
Fields of Research (FoR) 2020: 310308 Terrestrial ecology
310302 Community ecology (excl. invasive species ecology)
310901 Animal behaviour
Socio-Economic Objective (SEO) 2008: 970106 Expanding Knowledge in the Biological Sciences
Socio-Economic Objective (SEO) 2020: 280102 Expanding knowledge in the biological sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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